Space skydiver Felix Baumgartner three weeks on
2 November 2012 Last updated at 09:01 GMT
Austrian skydiver Felix Baumgartner has reflected on his record-breaking jump from the edge of space, ahead of a documentary on the challenge.
Space Dive, a BBC/National Geographic co-production, reveals how much he struggled during the four years of training.
Speaking to BBC Breakfast's Tim Muffett at the Science Museum in London, he said that he and his team had "accomplished something that mattered to the whole world."
Viewers in the UK can watch Space Dive on BBC Two on Sunday 4 November at 20:30 GMT